Spike for a loudspeaker



FIG. 1 is a top perspective view thereof;

FIG. 2 is a bottom view thereof;

FIG. 3 is a side view of a spike for a loudspeaker showing the new design, the front, back, right and left side views being identical;

FIG. 4 is a bottom perspective view thereof; and,

FIG. 5 is a top view thereof.

The portion of the spike for a loudspeaker as shown in dashed lines forms no part of the claimed design. 

CLAIM The ornamental design for a spike for a loudspeaker, as shown and described. 